US5291150A - Control circuitry for an RF signal amplifier - Google Patents
Control circuitry for an RF signal amplifier Download PDFInfo
- Publication number
- US5291150A US5291150A US07/918,546 US91854692A US5291150A US 5291150 A US5291150 A US 5291150A US 91854692 A US91854692 A US 91854692A US 5291150 A US5291150 A US 5291150A
- Authority
- US
- United States
- Prior art keywords
- detector
- signal
- output
- input
- increase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
- H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
Abstract
Description
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI913529 | 1991-07-23 | ||
FI913529A FI92531C (en) | 1991-07-23 | 1991-07-23 | High frequency detector with wide dynamics |
Publications (1)
Publication Number | Publication Date |
---|---|
US5291150A true US5291150A (en) | 1994-03-01 |
Family
ID=8532919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/918,546 Expired - Lifetime US5291150A (en) | 1991-07-23 | 1992-07-22 | Control circuitry for an RF signal amplifier |
Country Status (5)
Country | Link |
---|---|
US (1) | US5291150A (en) |
EP (1) | EP0524806B1 (en) |
DE (1) | DE69222900T2 (en) |
EE (1) | EE03246B1 (en) |
FI (1) | FI92531C (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5434537A (en) * | 1993-02-12 | 1995-07-18 | Nokia Mobile Phones Ltd. | Circuit for measuring the output power from an amplifier |
US5675611A (en) * | 1994-06-15 | 1997-10-07 | Nokia Mobile Phones Ltd. | Output power control and envelope shaping for a pulsed transmitter |
US5745526A (en) * | 1994-12-15 | 1998-04-28 | Nokia Mobile Phones Limited | Radio transmitters and methods of operation |
US5745016A (en) * | 1995-05-10 | 1998-04-28 | Nokia Mobile Phones Ltd. | Method for improving power measurement implemented with a directional coupler at low power levels |
US5752172A (en) * | 1996-08-16 | 1998-05-12 | Nokia Mobile Phones Limited | Distributed transmitter output power control circuit and method for a radio telephone |
US5819165A (en) * | 1994-11-14 | 1998-10-06 | Nokia Mobile Phones Ltd. | System for regulating the power output of and linearizing the transmission signal from a radio transmitter |
US5884149A (en) * | 1997-02-13 | 1999-03-16 | Nokia Mobile Phones Limited | Mobile station having dual band RF detector and gain control |
US6018646A (en) * | 1996-08-30 | 2000-01-25 | Nokia Mobile Phones Limited | Power consumption monitor and alarm for a mobile means of communication |
US6144842A (en) * | 1996-11-05 | 2000-11-07 | U.S. Philips Corporation | Radio frequency level control circuit with reduced supply voltage |
US6195562B1 (en) | 1996-11-13 | 2001-02-27 | Nokia Mobile Phones Ltd. | System for limiting the transmitted power of a mobile communication means |
US6289205B1 (en) * | 1997-01-03 | 2001-09-11 | Nokia Mobile Phones Limited | Transmitter for communication devices |
US6370358B2 (en) | 1996-11-18 | 2002-04-09 | Nokia Corporation | Mobile station having drift-free pulsed power detection method and apparatus |
US6836184B1 (en) | 1999-07-02 | 2004-12-28 | Adc Telecommunications, Inc. | Network amplifier with microprocessor control |
US20050059362A1 (en) * | 2003-08-29 | 2005-03-17 | Nokia Corporation | Method and apparatus providing integrated load matching using adaptive power amplifier compensation |
US6914943B2 (en) * | 1999-03-31 | 2005-07-05 | Kabushiki Kaisha Toshiba | Signal modulation circuit and signal modulation method |
US8217717B1 (en) * | 2010-09-10 | 2012-07-10 | Rf Micro Devices, Inc. | Linear detector with added diode feedback loop |
US20160154039A1 (en) * | 2014-12-01 | 2016-06-02 | Silicon Laboratories Inc. | Radio Frequency Energy Detection |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI92531C (en) * | 1991-07-23 | 1994-11-25 | Nokia Mobile Phones Ltd | High frequency detector with wide dynamics |
EP0895351B1 (en) * | 1997-07-31 | 2005-05-11 | Matsushita Electric Industrial Co., Ltd. | Automatic microwave gain control device |
FR2820911B1 (en) * | 2001-02-13 | 2003-05-30 | Sagem | METHOD FOR EQUALIZING DATA SYMBOLS RECEIVED BY A MODEM AND MODEM FOR IMPLEMENTING THE METHOD |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4158180A (en) * | 1978-04-13 | 1979-06-12 | General Electric Company | Temperature control circuit |
JPS5779722A (en) * | 1980-11-04 | 1982-05-19 | Matsushita Electric Ind Co Ltd | Automatic gain controlling circuit |
US4523155A (en) * | 1983-05-04 | 1985-06-11 | Motorola, Inc. | Temperature compensated automatic output control circuitry for RF signal power amplifiers with wide dynamic range |
US4602218A (en) * | 1985-04-30 | 1986-07-22 | Motorola, Inc. | Automatic output control circuitry for RF power amplifiers with wide dynamic range |
US4937842A (en) * | 1989-02-23 | 1990-06-26 | Motorola Inc. | Self adjusting data detector |
FI913529A (en) * | 1991-07-23 | 1993-01-24 | Nokia Mobile Phones Ltd | High frequency detector with wide dynamics |
-
1991
- 1991-07-23 FI FI913529A patent/FI92531C/en active
-
1992
- 1992-07-22 EP EP92306699A patent/EP0524806B1/en not_active Expired - Lifetime
- 1992-07-22 DE DE69222900T patent/DE69222900T2/en not_active Expired - Lifetime
- 1992-07-22 US US07/918,546 patent/US5291150A/en not_active Expired - Lifetime
-
1994
- 1994-11-23 EE EE9400354A patent/EE03246B1/en not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4158180A (en) * | 1978-04-13 | 1979-06-12 | General Electric Company | Temperature control circuit |
JPS5779722A (en) * | 1980-11-04 | 1982-05-19 | Matsushita Electric Ind Co Ltd | Automatic gain controlling circuit |
US4523155A (en) * | 1983-05-04 | 1985-06-11 | Motorola, Inc. | Temperature compensated automatic output control circuitry for RF signal power amplifiers with wide dynamic range |
US4602218A (en) * | 1985-04-30 | 1986-07-22 | Motorola, Inc. | Automatic output control circuitry for RF power amplifiers with wide dynamic range |
US4937842A (en) * | 1989-02-23 | 1990-06-26 | Motorola Inc. | Self adjusting data detector |
FI913529A (en) * | 1991-07-23 | 1993-01-24 | Nokia Mobile Phones Ltd | High frequency detector with wide dynamics |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5434537A (en) * | 1993-02-12 | 1995-07-18 | Nokia Mobile Phones Ltd. | Circuit for measuring the output power from an amplifier |
US5675611A (en) * | 1994-06-15 | 1997-10-07 | Nokia Mobile Phones Ltd. | Output power control and envelope shaping for a pulsed transmitter |
US5819165A (en) * | 1994-11-14 | 1998-10-06 | Nokia Mobile Phones Ltd. | System for regulating the power output of and linearizing the transmission signal from a radio transmitter |
US5745526A (en) * | 1994-12-15 | 1998-04-28 | Nokia Mobile Phones Limited | Radio transmitters and methods of operation |
US5745016A (en) * | 1995-05-10 | 1998-04-28 | Nokia Mobile Phones Ltd. | Method for improving power measurement implemented with a directional coupler at low power levels |
US5752172A (en) * | 1996-08-16 | 1998-05-12 | Nokia Mobile Phones Limited | Distributed transmitter output power control circuit and method for a radio telephone |
US6018646A (en) * | 1996-08-30 | 2000-01-25 | Nokia Mobile Phones Limited | Power consumption monitor and alarm for a mobile means of communication |
US6144842A (en) * | 1996-11-05 | 2000-11-07 | U.S. Philips Corporation | Radio frequency level control circuit with reduced supply voltage |
US6195562B1 (en) | 1996-11-13 | 2001-02-27 | Nokia Mobile Phones Ltd. | System for limiting the transmitted power of a mobile communication means |
US6370358B2 (en) | 1996-11-18 | 2002-04-09 | Nokia Corporation | Mobile station having drift-free pulsed power detection method and apparatus |
US6289205B1 (en) * | 1997-01-03 | 2001-09-11 | Nokia Mobile Phones Limited | Transmitter for communication devices |
US5884149A (en) * | 1997-02-13 | 1999-03-16 | Nokia Mobile Phones Limited | Mobile station having dual band RF detector and gain control |
US6914943B2 (en) * | 1999-03-31 | 2005-07-05 | Kabushiki Kaisha Toshiba | Signal modulation circuit and signal modulation method |
US6836184B1 (en) | 1999-07-02 | 2004-12-28 | Adc Telecommunications, Inc. | Network amplifier with microprocessor control |
US20050059362A1 (en) * | 2003-08-29 | 2005-03-17 | Nokia Corporation | Method and apparatus providing integrated load matching using adaptive power amplifier compensation |
US7512386B2 (en) | 2003-08-29 | 2009-03-31 | Nokia Corporation | Method and apparatus providing integrated load matching using adaptive power amplifier compensation |
US8217717B1 (en) * | 2010-09-10 | 2012-07-10 | Rf Micro Devices, Inc. | Linear detector with added diode feedback loop |
US20160154039A1 (en) * | 2014-12-01 | 2016-06-02 | Silicon Laboratories Inc. | Radio Frequency Energy Detection |
US9746505B2 (en) * | 2014-12-01 | 2017-08-29 | Silicon Laboratories, Inc. | Radio frequency energy detection |
Also Published As
Publication number | Publication date |
---|---|
FI92531B (en) | 1994-08-15 |
FI913529A (en) | 1993-01-24 |
EP0524806A1 (en) | 1993-01-27 |
EP0524806B1 (en) | 1997-10-29 |
EE03246B1 (en) | 1999-12-15 |
DE69222900T2 (en) | 1998-04-02 |
FI913529A0 (en) | 1991-07-23 |
FI92531C (en) | 1994-11-25 |
DE69222900D1 (en) | 1997-12-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: NOKIA MOBILE PHONES LTD., FINLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:SAARNIMO, TIMO;NIEMIO, MIKA;REEL/FRAME:006340/0126 Effective date: 19921103 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
FPAY | Fee payment |
Year of fee payment: 12 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
AS | Assignment |
Owner name: NOKIA CORPORATION, FINLAND Free format text: MERGER;ASSIGNOR:NOKIA MOBILE PHONES LTD.;REEL/FRAME:025685/0001 Effective date: 20060509 Owner name: RENESAS ELECTRONICS CORPORATION, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NOKIA CORPORATION;REEL/FRAME:025685/0158 Effective date: 20101130 |